title: [Ultrastructural study of the mycelium-yeast transition in Histoplasma capsulatum. I. Changes at 37 degrees C].
abstract: Ultrastructural changes observed during the first 24 hours of mycelium to yeast transition in the dimorphic fungus Histoplasma capsulatum are reported. During this period the plasma membrane becomes undulated and the cell wall loses its characteristic fibrous outer layer. At 8 h the ordered lamellar structure of the mitochondria is no longer apparent. 24 h after the temperature shift 70% of the cells are lysed. The remaining cells contain many cytoplasmic membrane structures; mitochondria are rarely observed. These morphological changes are probably correlated with the physiological events characteristic of mycelial to yeast transition.
authors.affiliation: Clinica delle Malattie Infettive, II Facoltà Di Medicina e Chirurgia, Università di Napoli.
authors.forename: G
authors.initials: G
authors.lastname: Borgia
authors.forename: A
authors.initials: A
authors.lastname: Tallarino
authors.forename: A
authors.initials: A
authors.lastname: Lambiase
authors.forename: S
authors.initials: S
authors.lastname: Cicciarello
authors.forename: L
authors.initials: L
authors.lastname: Reynaud
authors.forename: G
authors.initials: G
authors.lastname: Nasti
authors.forename: R
authors.initials: R
authors.lastname: Lobresco
authors.forename: M
authors.initials: M
authors.lastname: Piazza
mesh_terms: D002473:Cell Wall / Q000648:ultrastructure; D006658:Histoplasma / Q000502:physiology / Q000648:ultrastructure*; D008854:Microscopy, Electron; D008928:Mitochondria / Q000648:ultrastructure; D013696:Temperature
vernacular_title: Studio ultrastrutturale sulla transizione micelio-lievito in histoplasma capsulatum: I. Cambiamenti a 37 gradi C.